How *does * one fold a fitted sheet? http://www.comics.com/comics/ben/index.html
It seems to me that one doesn’t fold them as much as get them into a shape neat enough not to cause further wrinkling. Once they are out of the package, forget it.
Thanks, Zip, another one of life’s mysteries answered! 
Yep, that’s how I do it! My aunt taught me.
I’ve found that cats are not helpful for sheet folding.